Trifunctional olefinic-capped polymers and compositions that include such polymers
AssigneeLord Corporation
InventorRobin F. Righettini
Life of this patent
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Abstract
A polymer having at least one reactive terminal or pendant functional group that has been capped with a trifunctional olefinic compound. The polymer can be made by contacting a base polymer having at least one reactive terminal or pendant functional group with a trifunctional olefinic compound under conditions effective to react at least one of the terminal or pendant functional groups with the trifunctional olefinic compound. The capped polymers are particularly suitable as crosslinking toughening agents in multi-components compositions such as adhesives, coatings and matrices for composites.
Claims13
A polymer having at least one reactive terminal or pendant functional group that has been capped with a trifunctional olefinic compound said polymer containing said terminal or pendant group having a structure represented by:
- wherein A represents said polymer;
- X is an electron withdrawing group;
- Y is —R1, —Ar or an electron withdrawing group;
- and Z is a moiety selected from the first or second row elements of the Periodic Chart in the form of either a single element or linearly bonded multiple elements;
- and R1 is an alkyl, alkoxy, alkyl ether, alkenyl, alkyl ester, amino, alkylamino, alkylimino, or alkylamimidoyl (wherein Ar is an aryl or substituted aryl group).
A polymer made by contacting a base polymer having at least one reactive terminal or pendant functional group with a trifunctional olefinic compound under transesterification or directed esterification conditions effective to react at least one of the terminal or pendant functional groups with the trifunctional olefinic compound.
Dependencies are inferred from the claim text.